As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAPS FAIL EICAS DURING DESCENT. PERFORMED LANDING WITH FLAPS AT ZERO AFTER COMPLYING WITH QRH. FOLLOWED FIM 27-51-00-810-804A BOTH THE FIM TASK AND FAULT CODE 27S12009ACE IDENTIFY THE LT OB SKEW SENSOR AT FAULT. REMOVED AND REPLACED LT OB SKEW SENSOR IAW MM 27-53-06.